TWIN-P
Pressure-tight, concentric flue gas duct
The concentric, pressure-tight flue gas duct TWIN-P can be installed both inside and outside a building and is connected to room-air-independent appliances such as condensing boilers, combined heat and power units, gas-fired heat pumps, or fuel cells.
The annular gap between the exhaust-carrying plastic inner pipe and the outer stainless steel casing serves as the supply for fresh air.
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